Shibari... it's not that the act of being tied up is embarrassing, but rather getting excited, feeling pleasure, and getting wet from the situation of being bound, fucked, and verbally abused. Nami has no choice but to do as she's told after a fellow teacher discovers her weakness. Her freedom is taken away with a gag ball and M-shaped bondage, then she's raped... fucked from behind in all-fours bondage, and subjected to relentless irrumatio with her hands tied behind her back... Even though she was supposed to hate it, the pain of the hemp rope digging into her skin turns into pleasure... "Please love me more." The teacher, fallen for the ropes, degrades into a lewd female.